Rheem Electric Domestic Water Heater - Manual (Page 14)

SAVE A SERVICE CALL
EXPANSION CONTROL VALVE RUNNING
If an expansion control valve is fitted in the cold water line to the water heater
(refer to page 23 ) it may discharge a small quantity of water instead of the
temperature pressure relief valve on the water heater. The benefit is that
energy is conserved as the discharged water is cooler.
HIGH ELECTRICITY BILLS
Should you at any time, feel your electricity account is too high, we suggest you
check the following points:
• Is the relief valve running
excessively? (Refer to
“Temperature Pressure Relief
Valve Running”
on page 13).
• Is one outlet (especially the
shower) using more hot water than
you think? (Refer to
“Not Enough
Hot Water” on page 12).
• Is there a leaking hot water pipe,
dripping hot water tap, etc? Even a
small leak will waste a surprising
quantity of hot water and electricity.
Replace faulty tap washers, and
have your plumber rectify any
leaking pipe work.
• Consider recent changes to your hot water usage pattern and check if there
has been any increase in tariffs since your previous account.
ELECTRICITY TARIFFS
The electricity tariff to which your water heater is connected will determine the
overall operating cost of the system. It is important you are aware of this tariff,
i.e.
Off-Peak (overnight) or time controlled supply, Extended Off-Peak
(overnight and day) or Extended time controlled supply, Domestic / Continuous.
For types of tariffs, refer to
“Single Element Model” on page 8 and “Twin
Element Model” on page 9.
IF YOU HAVE CHECKED ALL THE FOREGOING AND STILL BELIEVE YOU
NEED ASSISTANCE, CALL YOUR NEAREST RHEEM SERVICE
DEPARTMENT OR ACCREDITED SERVICE AGENT.
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